Illustration of a heraldic rampant lion on hind legs, like those found on a coat of arms
Hello all, I have a Scrub Oak tree in my front yard, and I have St. Augustine underneath it. The grass is very thin and I was told that is because oak trees turn the soil acidic. I had lime put down last year but the grass still looks the same.ello all, I have a Scrub Oak tree in my front yard, and I have St. Augustine underneath it. The grass is very thin and I was told that is because oak trees turn the soil acidic. I had lime put down last year but the grass still looks the same.
The decomposing leaves feed the microorganisms in the soil and provide nitrogen, potassium, and other nutrients. If you have a compost pile, live oak leaves make a good addition. Add a little lawn fertilizer to speed up the decomposition or some of the weeds you are pulling from your garden.My favorite use for live oak leaves is as mulch.Spread four inches deep over the root system of a newly planted tree or shrub and it will speed up growth considerably over a plant where grass grows up to the trunk. Mulch also makes it unnecessary to string mow near the stems and trunks.y favorite use for live oak leaves is as mulch. Spread four inches deep over the root system of a newly planted tree or shrub and it will speed up growth considerably over a plant where grass grows up to the trunk. Mulch also makes it unnecessary to string mow near the stems and trunks.